We are looking for an experienced Backend Engineer with strong expertise in Java (11+), Quarkus or Spring Boot, and microservices architecture. The ideal candidate will design, develop, and maintain scalable, secure, and high-performing backend systems deployed on OpenShift (OCP) and Google Cloud Platform (GCP).
This role requires hands-on experience with containerization (Docker), orchestration (Kubernetes), and CI/CD pipelines (GitLab), along with a deep understanding of RESTful APIs and modern backend engineering practices.
Key Responsibilities:- Design, develop, and maintain scalable microservices using Quarkus or Spring Boot.
- Develop and integrate RESTful APIs with internal and external systems.
- Deploy, monitor, and manage services in OpenShift (OCP) and GCP environments.
- Implement and maintain CI/CD pipelines using GitLab for automated build, test, and deployment processes.
- Containerize applications using Docker and manage deployments through Kubernetes.
- Ensure high availability, reliability, performance, and security of backend services.
- Collaborate with cross-functional teams for solution design, architecture reviews, and performance tuning.
- Participate in code reviews, technical discussions, and best practice implementations.
RequirementsRequired Skills & Qualifications:
- 5+ years of experience in backend development with Java 11+.
- Strong knowledge of Spring Boot and/or Quarkus frameworks.
- Proven experience in designing and building RESTful APIs.
- Hands-on experience with microservices architecture and distributed systems.
- Experience with Docker, Kubernetes, and OpenShift (OCP).
- Familiarity with GCP services for application deployment and scaling.
- Experience with GitLab CI/CD pipelines for automated delivery.
- Strong understanding of SQL and NoSQL databases (e.g., PostgreSQL, MongoDB, etc.).
- Good understanding of software security, authentication, and API gateway patterns.
- Experience with Kafka or RabbitMQ for messaging and event-driven systems.
- Familiarity with Keycloak, OAuth2, or other authentication/authorization mechanisms.
- Knowledge of monitoring and observability tools (e.g., Grafana, Prometheus, ELK Stack).
- Exposure to GraalVM or Quarkus native builds for performance optimization.
- Experience with Agile/Scrum development methodologies.
Top Skills
What We Do
A digital transformation company, driven to solve some of the most complex problems in the world today through technology. Our core service portfolio includes staff augmentation, software development and cloud services with over 300+ projects delivered to date. Established in 2014, with a continuously growing team of 250+ experts, operating across 3 regions with Americas, Middle East, and Southeast Asia, CodeNinja is one of the fastest growing technology companies recognized by Forbes Technology Council. With value addition being a core focus for the company, CodeNinja ranks as one of the top and best reviewed software development and services company. Now offering enterprise cloud solutions to some of the leading technology companies in the world, the company has secured funding of $1.6M and is poised to invest in redefining workplace dynamics through use of advanced AI. CodeNinja has earned the trust of more than 240 clients spread across 15 different countries and 9 different industries. The company is also one of the top-rated outsourcing services provider in Pakistan, forming dedicated technology teams for some of the world's leading organizations like Microsoft, Lifeforce (Tony Robbins) and OTL alongside unicorns such as 24Seven, ABHI, and Graana. In addition, to ensure quality and commitment to client data security, the company is now ISO 270001 certified. Services: · Offshore Engineering Teams · Custom Software Development · Dedicated Development Center · Application Modernizations · Cloud Services and Solutions · Modern Workplace Solutions · Digital Transformation Strategy · AI Consulting · AR/VR and Digital Twins · eCommerce Solutions Awards and Achievements: Top 1000 Companies Clutch Global 2023 Top Company in .Net Developers 2023 Clutch Global Fall 2023 Certifications & Partnerships: Adobe Commerce Cloud Solution Partner Microsoft Solution partner for business applications. Microsoft Solution Partner for Azure Data and AI.
